ip_aux
t = ip_aux(0,ahc->ip_keys, nhp[0]);
t = ip_aux(0,ahc->ip_keys+4, nhp[1]);
t = ip_aux(0,ahc->ip_keys+8, nhp[2]);
t = ip_aux(0,ahc->ip_keys+12, nhp[3]);
t = ip_aux(0,ahc->ip_keys+(i*4), ahc->poly_accum[i]);